| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| github.com/open-policy-agent/opa/ast | Deprecated: This package is intended for older projects transitioning from OPA v0.x and will remain for the lifetime of OPA v1.x, but its use is not recommended. |
| github.com/open-policy-agent/opa/internal/compiler/wasm | Package wasm contains an IR->WASM compiler backend. |
| github.com/open-policy-agent/opa/types | Deprecated: This package is intended for older projects transitioning from OPA v0.x and will remain for the lifetime of OPA v1.x, but its use is not recommended. |
| log | Package log implements a simple logging package. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |